Metal-bur filer



Dec. 19 1922. 1,439,370

' L. A. LAMBERT.

METAL BUR FILER. FILED sEPr. 28. 920. 2 SHEETS-SHEET I @Montags1,439,37e PATENT orifice, A5

IiOUIS A. LAMBERT, OF ROME, NEW YORK.

METAL-'BUR FILER.

Application ined september 2s, 192e. semina. 413,305.

To all fr0/Lem t may concern:

Be it4 known that 1, Louis' A. LAMBERT, a

citizen or' Canada, and a residen-t ofthe United States, resicingatRom'e, in the county of Oneida, State of New York, have inventedcertain new and useful' Improvements in Metal-Bur Filers; and 1 dohereby declare the following to'be a full, clear, and exact descriptionol the invention, such as will en- 4able others 4skilled i'n the' art towhich it appertaiiis to make and use the same.

r1`h1s invention relates to metal smoothing or bur tiling machines, andainis primarily to provide a device of comparatively `simpleconstruction and ready adjust-ment for triniining the raw or burrededges of metal strips lat'ter the latter have been cut inthe sawingoperation; a machine obviating the tedious work heretofore performedmanually.

A further object of the invention is to pro-vide a machine or thecharacter stated whichis `constructed in such manner as to be adaptableto metal strips ot'various widths and thicknesses, being equipped withmeans of an improved nature Alor setting or maintaining` the cutting oi?smoothing edges in proper position. l

A. still 'further object oit the invention is to provvide means inConnection with power operatedmetal strip feeding mechanism for trimmingthe edges of the metal carried through the machine, the devicebeingfeatured by means et an limproved. nature for properlyaligiiing thecutters with the power feediiioV mechanism, whereby distortion ,ot themetal strips is obviated and danger of the lmachinery becoming jammed isovercome.-

A still further Objectis to provide cutting or scrapingmeans of suchconstructioil that the smoothing edges thereof, while performing theirfunctions properly in operating upon the meta-l, are at all timesprotected and undue pressures upon the same are overcome.

1V ith these objects iii View, together with others which will appear asthe description proceeds, ,the invention consists iii the novelco'iistructioin combination, and arrangement of parts,'all as will bedescribed more fully y hereinafter, illustra-ted in the drawing, and

particularly pointed out in the claims.

1n the drawing: i

Figure 1 is a front elevation ofy a metal smoothing or filing machineconstructed in accordance with the invention,

Figure 2 i's a vertical sectional view upon line 2*--2 oli" Figure 1,

Figure 3 is a top plan view of the iinproved inachine,

F'gure 4 is adetallview of one vof 'the cutters, and

Iiifgi'i're 5 is a detail view of the rea-r plate of the machine andshowing the arrangement of the wiper thereon.

In' carrying out the invention, the irnproved mechanism ifs associatedwith the drawing rolls of any approved type 'or construction foradvancing the metal 'strips to be filed. 1n thepresen't instance theupper and lower rolls 6 and 7 respectively are arranged in the housing 8constituting the body of the machine. The upper rolll is taken urgedtoward thel lower roll by means of the expansion springs 9;- the latterbearing' at their lower ends upon the vertical iliioving bearing lolo-ck10 of the upper roller, and

said springs engage at theirv upper ends against the sleeves 11 carriedby the tlireaded stems 12 v constituting adjusting members( The journalsof the rollersiiiay be intergeared asat 13, and motion isimparted' toone of the rolls through the instrumentality o'the belt wheel or pulley14.

The forward end of the body is providedwith a vertically disposed wallor plate 15, liavii'ig'a vcentral aperture 16 thro-ugh which metalstrips pass before being engaged by and adjustable Scrapers are arrangedupon the said frameL so as to be vadjustable toward or away from eachother and adj aceiit` to' the said opening in the frame. These cuttersare adaptedto engage the rough edges of the metal strip asit-A is drawninto the body 'or' the machine by the rolls heretofore described.

Each of the scraping members comprises a blade land a guard 2Q. A bladeis formed of suitable iiietal, preifeiablyof rectangular formation, andis provided at one end with scraping edges 23. In the present instancethese edges are formed by making a notch of substantially V-sliape inthe end of the blade, the interior faces of the l-notch being beveledaway so as to provide straight sharp scraping edges next to the exteriorsurfaces of the blades. Each blade is provided in its exterior tace witha central longitudinal rib 24, the edges ot which are parallel ywith thelateral edges ot the blade. his rib extends snugly into a recess orchannel of corresponding shape and size in the inner it'ace ot the guard22. rllhe guard is preferably coextensive with the blade, and isprovided with a V-notch at one end corresponding to the similarly shapednotch in the blade and having its walls disposed at substantially thesame angle. The guard is provided with a longitudinally disposed slot,through which extends a screw or bolt 25, the inner end of the boltbeing threaded into the blade. By this construction the guard may beadjusted longitudinally ot the blade so as to dispose the inner faces tothe inclined walls ot." its notch properly with respect to the scraping`edges of the blade, and when such adjustment has been made the plate andguard are firmly held against relative movement by tightening the boltrEhe most beneicial results are obtained by adjusting the guard so thatthe walls ot its notch only expose a very narrow portion of the cuttingedge ot the blade, and it is obvious, therefore, that in addition toreinforcing and protecting the cutting edges of the blade, the guardoperates as a guide tor the metal strip moving into the machine.

The supporting means for the cutters7 in the present instance, includesa guide or trackway indicated at 26, the latter being disposedtransversely upon the exterior or" trame 18 and substantially inalignment with the lower edge of the opening in the said frame throughwhich the metal strip passes. This guide or trackway receives andsupports the lower longitudinal edge oit each of the blades. The upperlongitudinal edge ot each blade is beveled as shown, and blocks 27having correspondingly inclined lower edges are arranged upon the framein substantial alignment with the upper edge of the strip receivingopening in the latter; the said blocks overlying the adjacent edges ofthe blades and acting as guides. These blocks are adjustable toward andaway from the frame 18, so that the cutters may be moved freely withinthe guides when the blocks are loosened, and when the blocks are clampedlirmly down upon the supporting trame, the overhanging edges ot theblocks will cause the upper edges ot the blades to be firmly clampedagainst the tace ot the frame, whereby movement of the cutters will beprevented. The cla nping means for these blocks, in the presentinstance, comprise screws or bolts indicated at 28.

The upper edges ot the blocks 27 are beveled inwardly toward the tace otthe trame, and engage the correspondingly inclined lower tace of strip29 secured to the tace ot the frame. By this construction it is obviousthat when the screws or bolts 2S are tightenend, the blocks 27 will becaused to wedge between the upper edges of the blades and the lower edgeof strip 29.

ln order that the surface of a strip will` be cleaned ot' metal dustafter passing through the scraper, a wiper 30 is provided. This-wiperincludes a plate 3l of suitable length, yieldably held by spring arms 82upon the rear face oic the front plate l5 ot the machine. The lower taceof the plate 3l is provided with a wiper pad 38, Jformed ot any suitablematerial. The arms 32 maintain the lower portion ot the wiper member insuch position that it will rest upon a strip ot metal passing into themachine and toward the rolls. rlhis action ot the wiper will tree thestrip ot' any dirt, grit, or metal particles.

ln operation, the blocks 27 are loosened so that the blades may be'freely moved within their guides. The blades are set a distance apartsufficient to permit the metal strip to pass between the opposedV-notches in the blades, with the scraping edges of the notched portionsbarely touching the longitudinal edges ot the strip. vl/*hen this adjustment has been made, thebolts or screws 2S are tightened so as tofirmly clamp the blades in position. lt will be understood, oli course,that prior to operation of the machine the guards 22 will have beenadjusted upon their respective blades as has been before mentioned. hemetal strip is passed into the machine until the forward end thereofpasses between the rolls 6 and 7, and rotation ot these rolls in themanner described will cause the strip to be passed through the body oit'the machine and out at the rear thereof. Adjustment of the screw 19 willcause the blade carrying frame to be raised and lowered as the caserequires, and these adjustments may be minutely governed bythe meansemployed.

By making the cutting edges orp these Scrapers in the torni ciiif-notches, it is obvious that metal strips or plates ot various gaugesmay be trimmed in the machine without the requirement oi speciallyconstructed cut-ters.

llVhile the jforegoing is a description of the preferred embodiment otthe invention, it will be understood, that the invention is notnecessarily restricted thereto as various changes in the details otconstruction and arrangement ot parts may be resorted to withoutdeparting 'from the spirit ot the invention as dened by the claims.

That I claim is: y

-l. In a metal smoothing machine, a body, a frame on said body having anopening to receive a travelling strip or' metal, a trackway on saidframe nearthelower edge of said opening, blocks near the upper edge ofsaid opening adjustable toward and away from said frame, Scrapersresting in said traclrway and slidable toward and away from saidopening', and an overhanging portion on each of said blocks to engageovel the upper edges of said scrapers and to engage the edges of thelatter.

2. In a metal smoothing machine, a frame through which a metal strippasses, guides upon said frame, blades'arranged on said guides andadapted to move toward and away from the edges of the strip, 4the edgesoil? said blades beingbeveled, blocks constituting' one of said guidesand having beveled edges overlying the adjacent-'edges of the blade, astrip having a beveled edge and aga-inst which 'the upper edges of theblock engage, and screws passing` through said blocks and into saidframe.

3. In a metal smoothing machine, a body, metal drawing rolls in saidbody, a plate at one end of said body having. an opening through which astrip of metal passes, a

frame adjustably mounted upon said plate, the said frame having anopening to align with the openingin said plate, Scrapers carried by saidframe, a screw on said plate, ak

nut on the frame to receive said screw, whereby rotation of the 'screwwill control the movement oic the iframe, and a wiper yieldablysupported by the plate between the latter and the rolls and adaptedtopress upon the metal strip passing 'through the plate.

ln a cutter for metal smoothing machines, a blade having a if-notch inthe end thereof, and walls of said notch beinfrsharpened to providescraping edges, a rib eX- tending centrally and longitudinally of saidplate and upon the outer 'face thereof, a

guard having a longitudinal 'recess in one face to receive said rib, oneend of said gua-rd having a il-notch corresponding to the notch in saidplate, the said gne-.rd having a longitudinalslot, 'and a screw memberextending through said slot and into said plate. ln testimony whereof, lalix my signature in the presence of two witnesses.

LOUlS LAlilBER-'D Witnesses JAY l). NOBLE, loi-1N T. HUMFHREY.

